If your destination is east of Village Center Drive (shown in blue), use Yorba Linda Boulevard/Weir Canyon Road from the Riverside Freeway to get to and from your destination. If your destination is west of Village Center, use Imperial Highway to the greatest extent possible to get to and from your destination.
Less common causes. There are also a number of other, less common causes of mouth ulcers. Some of these are listed below: 1  Herpes simplex infection: a highly contagious virus, also known as the 'cold sore virus', which can cause cold sores on the mouth and the genitals.
If you have several mouth ulcers, this can be a symptom of: hand, foot and mouth disease, which also causes a rash on the hands and feet; oral lichen planus, which causes a white, lacy pattern inside the cheeks; You can't always prevent mouth ulcers. Most single mouth ulcers are caused by things you can try to avoid, such as: